Science Vs
Debunking with evidence, giving sources and confidence levels, checkable
50:52The sunscreen-is-toxic case falls apart: entering the bloodstream is not the same as harm — but the vitamin D risk is real
The evidence most often cited for ‘sunscreen is toxic, sunscreen causes cancer’ mostly involves absurd doses or reversed causation; chemical filters showing up in blood does not make them poisonous. But daily use does raise the risk of winter vitamin D deficiency, and the evidence that sunscreen prevents melanoma in people with darker skin is especially thin.
1:01:15Did a Substation Wreck the 49ers? The Dose Is 40x Too Low, and the Data Says No
The conspiracy theory that electromagnetic radiation from a substation caused the 49ers' injury wave gets dismantled point by point by radiation experts and injury databases: the dose is far below the safety threshold, the cited papers don't hold up, the 2014 expansion was a different substation, and the data doesn't show the 49ers are the worst off.
39:39Yo-yo dieting doesn't wreck your metabolism; habits, not weight, decide lifespan
Weight cycling — yo-yo dieting — does not permanently break your metabolism, and in ordinary people the weight that comes back rarely costs you muscle. What actually shapes health and lifespan is the healthy habits themselves, not the swings in weight.
31:49Brain Signals Show Up Seven Seconds Early, and the Researcher Still Says Free Will Survives
The Libet and Haynes experiments show brain signals appearing half a second to seven seconds before ‘you decide’, but the researcher behind them denies this amounts to the absence of free will; compatibilism holds that will may be a macro-level emergent property of microscopic brain processes, the way temperature emerges from atoms.
44:38The narcissism epidemic is media hype: the data doesn't support it, and narcissists themselves suffer more
The much-hyped ‘narcissism epidemic’ has little data behind it; narcissism as measured by the NPI has actually been falling in recent years. True NPD affects about 1%, patients often carry depression and anxiety alongside it, and treatment works but takes years.